A:Answer Cellular means you will start paying a small monthly fee with your cellphone provider to activate the watch and use it like a phone. Without cellular, you have that option as well, but your cellphone needs to be close by otherwise it won’t work. One reason I love having the cellular option is because I’ve forgotten my phone at home, and I’m able to still make calls or send text messages. I also like being able to use the “find my iPhone” app on the watch to confirm that the phone is at home. Another option why I like cellular, is that when my phone dies, I can still use my watch for phone calls and text messages, or even to play music with a Bluetooth connection.